<template>
	<div class="login_container">
		<div class="login_box">
			<!--头像区域-->
			<div class="avatar_box">
				<img src="../assets/logo.png" alt="">
			</div>
			<!--登录表单区域-->
			
			<!--
			  可用的账户：
			       用户名：admin
				   密  码：123456
			-->
			
			<el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0" class="login_form">
			 <!--用户名-->
			  <el-form-item prop="username">  <!--prop配合:rules校验表单使用-->
			    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
			  </el-form-item>
			  <!--密码-->
			  <el-form-item prop="password">
			    <el-input type="password" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima"></el-input>
			  </el-form-item>
			  <!--按钮区域-->
			  <el-form-item class="btns">
			    <el-button type="primary" @click="login">登录</el-button>
			    <el-button type="info" @click="resetLoginForm">重置</el-button>
			  </el-form-item>
			</el-form>  
		</div>
	</div>
</template>

<script>
	
	export default{
		data(){
			return {
				//这是登录表单的数据绑定对象
				loginForm:{
					username:"admin",
					password:"123456"
				},
				//这是表单的验证规则对象
	            loginFormRules:{
					//验证用户名是否合法
					username:[
						{ required: true, message: '请输入登录名称', trigger: 'blur' },
						{ min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
					],
					//验证密码是否合法
					password:[
						{ required: true, message: '请输入登录密码', trigger: 'blur' },
						{ min: 6, max: 10, message: '长度在 6 到 10 个字符', trigger: 'blur' }
					]
				}
			}
		},
		methods:{
			
			//点击重置登录表单
			resetLoginForm(){
				//console.log(this); // this=>loginFormRef
				//见官网Form Methods https://element.eleme.cn/#/zh-CN/component/form
				this.$refs.loginFormRef.resetFields();
			},
			login(){
				//console.log(this);
				//validate对整个表单进行校验的方法,返回boolean
				
				// this.$refs.loginFormRef.validate(valid=>{
				// 	//console.log(valid);
				// 	if(!valid) return;
				// 	const result=this.$http.post("login",this.loginForm);//"login"=>地址  this.loginForm=>携带参数
				// 	console.log("登录请求结果：",result);  //result为Promise结构
				// });
				
				this.$refs.loginFormRef.validate(async valid=>{
						//console.log(valid);
						if(!valid) return;
						//{x,y,z...}对象的解构 data=res
						const {data:res}=await this.$http.post("login",this.loginForm);//"login"=>地址  this.loginForm=>携带参数
						//console.log("登录请求结果：",result); //result为具体的响应对象
					    console.log(res);
						if(res.meta.status!==200) return this.$message.error("登录失败！");
						//console.log("登录成功！");
						this.$message.success("登录成功！");
						window.sessionStorage.setItem("token",res.data.token);
						this.$router.push("/home");
					});
				
				
			}
		}
	}
</script>

<style lang="less" scoped>
	.login_container{
		background-color: #2b4b6b;
		height: 100%;
	}
	
	.login_box{
		width: 400px;
		height: 300px;
		background-color: #fff;
		position: fixed;
		left: 50%;
		top: 50%;
		transform: translate(-50%,-50%);
		.avatar_box{
			height: 130px;
			width: 130px;
			border: 1px solid #eee;
			border-radius: 50%;
			padding: 10px;
			box-shadow: 0 0 10px #ddd;
			position: absolute;
			top:0;
			left: 50%;
			transform: translate(-50%,-50%);
			background-color: #fff;
			img{
				width: 100%;
				height: 100%;	
			    background-color: #eee;
				border-radius: 50%;
				overflow: hidden;
			}
		}
	}

    .btns{
		display: flex;
		justify-content: flex-end;
	}

    .login_form{
		position: absolute;
		bottom: 0;
		width: 100%;
		padding: 0 20%;
		box-sizing: border-box;
	}

</style>
